Study on Lost Foam Casting Process of Wheel Core Parts

Author of the article:YANG Fenfen, LI Zhenyan, YAN Wenyu, CHEN Junyi, PAN Yuan

Author's Workplace：College of Engineering and Technology, Zunyi Normal University, Zunyi 563006, China

Key Words：wheel core; lost foam casting; process optimization; shrinkage cavity and porosity; carbon slag

Abstract：According to the structural characteristics of wheel core casting, the lost foam casting solidification process with the large flange of the wheel core placed downward is simulated and analyzed by using the numerical simulation software ProCAST. The simulation results show that there are serious shrinkage cavity and porosity defects in the thick part of the casting, which is in good agreement with the trial production result. In view of the shrinkage cavity and porosity defects, the flange of casting is placed upward instead of downward so that the shrinkage cavity and porosity defects are significantly reduced. The casting process scheme was further optimized by placing cold iron at the inner and outer flanges and changing the horizontal end face of the flange to a 30° inclined plane. The simulation results show that the shrinkage cavity and porosity defects in the casting are eliminated thoroughly based on the optimized process, which is the best process scheme.